I would certainly have him checked out by your vet. Sash has been vomiting more often for the past year now, not daily but sometimes 2-3 times a week and sometimes he may go two weeks with only vomiting once. There have been times when he has vomited 2 or 3 times in one day too. He goes in spurts. But after worrying very much for the last year I did take him in for his annual in Nov. and my vet did bloodwork and everything and said it's most likely IBD which is VERY common in cats. You might want to ask your vet and also read up a little on it in cats, the main symptom is usually vomiting. Now Sash is 13, much older so I also worried about other things. Sash also has been having more problems with hairballs too in the last 6 months, actually his first hairball ever came in July, at a time when he was vomiting his food a lot that week. So it can certainly be a problem with hairballs, vomiting food.

Dry food is sometimes much worse on cats with chronic vomiting problems from what I read, and believe me I've read so much on vomiting in the past year! It might be a good idea to try feeding more canned food, just a thought. Sash eats canned and dry and when he vomits it's most always the dry food not the canned. Dry food is much harder to digest for some cats. It can be a very frustrating thing to get under control. I hope you find something that helps Brodie soon.